Sprinkling device.



E. s. BIOKPORD.

SPRINKLING' DEVIGE.

APPLICATION FILED NOV. 29, 1911;

1,039,084.," Patented Sept. 24, 1912.

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ELBBIDGE s. BICKFORD, or BRISTOL, NEW HAMPSHIRE.

sPRiNKLIne nnvron.

Specification of Letters Patent.

Patented Sept. 24, 1912.

Application filed November 29, 1911. Serial No. 663,340.

ingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to new and useful improvements in sprinklingdevices and more particularly to adevice ofthe class described, adaptedto' be used in extinguishing fires. r The object of my invention is toprovide a device which maybe positioned in the upper part of arooxn'a'ndwhich is normally out of operation and which will be auto?matically opened in case of fire.

A further object of my invention is .to so constructthe nozzle that thefluid directed therethrough will be given a rotary movement, causing thesame to spread.

Other objects and advantages will be hereinafter set forth in thespecification and pointed out'in the claim.

In the accompanying drawings I have shown the preferred form which myinvention may. take.

In said drawings, F igurel 1s a longitu dinal sectional view through thenoazle. Fig. 2 is a horizontal sectional view therethrough, as seen online 22 ,Fig. 1, and, Fig; 3 is a vertical sectional view therethroughas seen on 1ine33, Fig. 1.

Referring to the drawin 's in which similar reference numerals designatecorresponding parts throughout the several views, 4 is a casing, whichis-separated into an upper and lower compartmentby means of a partition5. The upper portion of the casing is substantially cylindrical and isdirected rearwardly and externally screw threaded, as shown at (1, sothat a suitable supply pipe for water or other fluid may be connectedthereto.

The lower compartment is substantially semispherical, as shown in Fig.2, said semispherical portion being directed downwardly and provided atits center with an outlet opening 7, through which the fireextinguishing fluid is adapted to be directed. The partition 5 isprovided at diametrically the openings 8 to assist in giving theextinmoveinent in the opposite points with openings 8 therein, saidopenings being inclined in opposite directio'ns so that the fluidpassing there through into the lower compartment will be given a rotarymovement-therein, as will be clearly apparent to those skilled in-theart to which this invention appertains. The walls of the uppercompartment are also inclined, as shown at 9 and 10, over guishing fluida rotary lower compartment.

In order that the outlet opening 7 me be normally closed, I provide avalve 11, which is adapted to be normally held in said open ing. Thevalve 11 is preferably provided with an annular flange 12 adapted toengage the outer surface of the-casing, a suitable washer 13 beinginterposed between said flange and said casing so as to prevent leakage.The casing is provided with diametrically 'opposed downwardly. directed.stems 1 1 and 15, the lower end of the'stem 15 being preferably screwthreaded. A bar 16 having a bifurcated end, is pivoted to the stem 14,as shown at 17 the opposite end of saidbar being provided with anaperture 18 therein adapted to receive the threaded end of the stem 15.The bar 16 is also provided at its center with an interiorly screwthreaded aperture 19, adapted toreceive a bolt 20 .therethrough; Theinner end of the bolt 20 may be enlarged, as shown at'21, and is adaptedto be turned against uhe outer end of the valve 11. A nut 22, forl ed ofeasily fusiblemetal, is turned upon the outer end'of the screw threadedstem 15, so as. to hold.the bar 16 in position as shown in Fig. 3. Thebolt 20 is .then turned so as to tightly seat the valve 11 in theopening in the casing. A spring 23 has one end-,seated in a recess 24;formed in the casing, its other end bearing against the bar 16 and tendsto move the bar away from the stem 15.

' In operation the nozzle is positioned in a room near the ceilingthereof and is connected to a supply pipe for water or other desiredfire extinguishing fluid. Should a fire occur in the room. the heatthereof will quickly melt the fusible nut 22 and. the spring 23 willmove the bar so that the bolt 20 will be moved out of the path of thevalve 11. The pressure of the water or other fire extinguishing fluidwill iuuncdi ately unseat the valve, and owing to the fact charge thatthe water will be given a rotary movement in the lowerportion' of thecasing, the same will be sprayed "and directed into all arts of theroom, so that the fire will be uickly extinguished.

I/VhileI have shown and described my invention as being disposed so thatthe disor outlet epening is downwardly directed. I desire it to beunderstood that I may direct the same upwardly or in any otherdirection, so that upon the'occurrence' of a fire in a predeterminedlocation, the fire extinguishing fluid will be mostadvantageouslydirected upon the flames.

From the foregoing description it will be seen that I have provided atire extinguishing device, which is normally inoperative and which willquickly be brought into operation on the occurrence of a fire. It willalso be seen that owing to the constructionof my device, thefireextinguishing fluid will be directed over a large surface.

IVhile I have shown the preferred forn which my invention may take,I'desire it to 'be understood that certain modifications Copies? 01 thispatent may be obtained for .I may be madefive cents each, by addressingthe Washington, D. 0.

therein without departing from the spirit and scope of my invention.What I claim as new is: The combination with a rotary sprinkler havinginlet and outlet openings therein; of a pair of integral stems dependingfrom said casing, the lower end of one of sai stems being reduced andthreaded, a bar.

pivoted to the other stem, means carrid thereby for closing said outletopening, a

the reduced end of fusible nut threaded on the free end of said saidstem and engaging bar, and and engaged against the upper face of saidbar whereby when the free end of the latter is released it will bethrown into a vertical position and out. of the path of the fluidissuing from the outlet opening.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ELBRIDGE S. BICKFORD.

Witnesses: g

ALBERT C. PHIPPs, IRA B. BURPEE.

Commissioner of Patent a spring carried bysaid sprinkler

